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Electrochromic device based on polyoxometallate

A technology of polyoxometalates and devices, which is applied in the direction of instruments, electrolytic inorganic material coatings, optics, etc., can solve problems such as the impact of device performance, and achieve the effects of low production cost, easy operation, and rapid response

Inactive Publication Date: 2016-06-01
NORTHEAST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For polyacids, adjusting the molecular configuration will greatly affect the performance of the device.

Method used

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  • Electrochromic device based on polyoxometallate
  • Electrochromic device based on polyoxometallate
  • Electrochromic device based on polyoxometallate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] will {P 2 W 15} Dissolve in water, prepare a 0.01mol / L aqueous solution, adjust the pH of the solution to 2 with hydrochloric acid, and print the TiO 2 The conductive glass was used as the working electrode, the saturated calomel electrode was used as the reference electrode, and the Pt wire was used as the counter electrode. The constant voltage electrodeposition voltage was set to -1.25V, and the time was 10min.

[0025] The electrodeposited substrate was taken out, rinsed with deionized water, rinsed with ethanol, and dried with nitrogen. Composite films based on polyoxometalates were prepared.

[0026] The composite film is used as one pole, the transparent conductive glass coated with Pt is used as the other pole, and a small hole glass is used as the counter electrode to form a device, and the device is sealed; the LiClO 4 The aqueous solution is injected into the inside of the device from a small hole as an electrolyte, and the small hole is sealed with a thin...

Embodiment 2

[0028] will {P 2 W 15} Dissolve in water, prepare a 0.01mol / L aqueous solution, adjust the pH of the solution to 2 with hydrochloric acid, and print the TiO 2 The conductive glass was used as the working electrode, the saturated calomel electrode was used as the reference electrode, and the Pt wire was used as the counter electrode. The constant voltage electrodeposition voltage was set to -1.25V, and the time was 10min.

[0029] The electrodeposited substrate was taken out, rinsed with deionized water, rinsed with ethanol, and dried with nitrogen. Composite films based on polyoxometalates were prepared.

[0030] The composite film is used as one pole, the transparent conductive glass coated with Pt is used as the other pole, and a small hole glass is used as the counter electrode to form a device, and the device is sealed; the LiClO 4 The aqueous solution is injected into the inside of the device from a small hole as an electrolyte, and the small hole is sealed with a thin...

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Abstract

The invention relates to a smart device, in particular to an electrochromic smart window based on polyoxometallate. Saturated polyoxometallate is taken as a raw material, conductive glass with a semiconductor film printed is taken as a substrate, and a composite film is prepared with the electrodeposition technology. An aqueous solution is used in the whole film preparation process and is environment-friendly and harmless, and the operation is convenient and easy to implement. The electrochromic device prepared from the film has good electrochromic performance and has commercial prospect.

Description

technical field [0001] The invention relates to a photoelectric device, in particular to an electrochromic smart window based on polyoxometalates. Background technique [0002] High performance WO 3 Electrochromic devices based on electrochromic materials are generally prepared by magnetron sputtering or vacuum evaporation, but for the sake of cost reduction, it is an effective means to develop the solution method film technology under normal temperature and normal pressure. This electrodeposition method has aroused our interest because it can be carried out at normal temperature and pressure; this method can be applied to complex shapes, large-area and porous substrates; the operation process is simple and controllable. [0003] The key to preparing a high-performance electrochromic film is to choose a suitable method and a suitable electrochromic material. Polyacids are potential electrochromic materials due to their excellent electrochemical properties. The leading met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/15C25D9/04
Inventor 王恩波王诗铭
Owner NORTHEAST NORMAL UNIVERSITY
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